Double Orifice Kinetic Air Release Valve

Large water pipelines can experience significant air movement during filling, draining and vacuum formation. A double orifice kinetic air valve is designed to manage these high-volume air movements while also releasing smaller quantities of accumulated air during normal operation. Double Orifice Kinetic Air Valve Supplier in South Africa can provide this type of valve for large water-transmission and pumping systems.

Technical Specifications

Parameter	Specification
Valve Type	Double Orifice Kinetic Air Valve
Operating Principle	Float Operated
Orifice Arrangement	Large Kinetic Orifice + Small Air-Release Orifice
Functions	Air Release / Bulk Air Discharge / Air Admission
Operation	Automatic
Body	Ductile Iron
Nominal Size	DN50–DN600
Pressure Rating	PN10 / PN16 / PN25 / PN40
End Connection	Flanged
Testing	EN 1074-4 / Applicable Project Standard

Materials & Components

Body: Ductile Iron EN-GJS-500-7 / ASTM A536 Grade 65-45-12
Bonnet: Ductile Iron / Stainless Steel, depending on design
Float: Stainless Steel 304 / 316 / 316Ti
Large & Small Orifice Components: Stainless Steel 304 / 316
Internal Trim: Stainless Steel 304 / 316
Seat: EPDM / NBR
Gaskets & Seals: EPDM / NBR
Fasteners: Stainless Steel 304 / 316
Coating: Fusion-Bonded Epoxy, where specified

Standards

EN 1074-4 is applicable to air valves for water-supply systems. AWWA C512 may also be specified for air-release, air/vacuum and combination air valves where the project follows AWWA requirements. Flange dimensions, pressure testing and hydraulic performance should be confirmed for the selected design.

Double Orifice Kinetic Air Release Valve

Related Products

Combination Air Release Valve

Single Orifice Air Release Valve

Double Orifice Air Release Valve